upgrade dojo to 1.8.3 (refs #570)

lib/dojo/data/api/Item.js.uncompressed.js

@@ -0,0 +1,13 @@
+define("dojo/data/api/Item", ["../../_base/declare"], function(declare){
+
+	// module:
+	//		dojo/data/api/Item
+
+	return declare(null, {
+		// summary:
+		//		An item in a dojo/data store
+		//		Class for documentation purposes only. An item can take any form, so no 
+		// 		properties or methods are defined here.
+	});
+
+});